[all-commits] [llvm/llvm-project] 614567: [libc] Automatically add -mfma flag for architectu...

[lntue via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 614567a7bf4a7a4c2570ad9a499b77155dfb54ce
      https://github.com/llvm/llvm-project/commit/614567a7bf4a7a4c2570ad9a499b77155dfb54ce
  Author: Tue Ly <lntue.h at gmail.com>
  Date:   2022-06-03 (Fri, 03 Jun 2022)

  Changed paths:
    M libc/cmake/modules/LLVMLibCCheckCpuFeatures.cmake
    M libc/cmake/modules/LLVMLibCFlagRules.cmake
    M libc/cmake/modules/LLVMLibCObjectRules.cmake
    M libc/src/__support/FPUtil/CMakeLists.txt
    M libc/src/__support/FPUtil/PolyEval.h
    M libc/src/__support/FPUtil/x86_64/FMA.h
    M libc/src/__support/FPUtil/x86_64/PolyEval.h
    M libc/src/__support/architectures.h
    M libc/src/math/CMakeLists.txt
    M libc/src/math/fma.cpp
    M libc/src/math/fmaf.cpp
    M libc/src/math/generic/CMakeLists.txt
    M libc/src/math/generic/exp2f.cpp
    M libc/src/math/generic/expf.cpp
    M libc/src/math/generic/expm1f.cpp
    M libc/src/math/generic/log10f.cpp
    M libc/src/math/generic/log1pf.cpp
    M libc/src/math/generic/log2f.cpp
    M libc/src/math/generic/logf.cpp
    M libc/test/src/math/CMakeLists.txt

  Log Message:
  -----------
  [libc] Automatically add -mfma flag for architectures supporting FMA.

Detect if the architecture supports FMA instructions and if
the targets depend on fma.

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D123615